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Vishay General Semiconductor - Diodes Division T6N47AHM3/I
- Part No.:
- T6N47AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
T6N47AHM3/I.pdf
- Description:
- LOW-PROFILE VERSION 600 W UNI-DI
- Quantity:
- Payment:
- Shipping:
Inventory:14,000
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Product details
Overview
T6N47AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor in DFN3820A package, featuring 47 V nominal breakdown voltage (VBR), 40.2 V stand-off voltage (VWM), 64.8 V clamping voltage at 9.3 A peak pulse current, and 600 W peak pulse power rating (10/1000 μs). It is AEC-Q101 qualified for automotive sensor line protection.
For engineers reviewing the T6N47AHM3/I datasheet, T6N47AHM3/I pinout, T6N47AHM3/I application, or T6N47AHM3/I equivalent, this device supports high-reliability transient suppression in space-constrained automotive ECUs where TJ = 185 °C operation, side-wettable flanks for AOI, and MSL Level 1 reflow compatibility are required.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with junction passivation optimized for stable clamping under repetitive surge stress. Its unidirectional configuration provides low-leakage reverse blocking up to 40.2 V while delivering precise 47 V breakdown at 1 mA test current.
The DFN3820A package enables thermal resistance of RθJM = 5 °C/W (typ) to the PCB mount pad, supporting sustained operation at junction temperatures up to +185 °C. It meets IEC 61000-4-2 ±30 kV ESD immunity and is halogen-free, RoHS-compliant, and qualified per AEC-Q101.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nom) | 47.0 V - precise breakdown threshold at 1 mA, enabling accurate overvoltage triggering in 36 V automotive systems |
| VWM | 40.2 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA, ensuring signal integrity during normal operation |
| VC @ IPPM | 64.8 V - clamping voltage at 9.3 A peak pulse current, limiting downstream IC stress during ISO 7637-2 pulse 1/2a transients |
| PPPM (10/1000 μs) | 600 W - surge energy handling capacity sufficient for load-dump and inductive switching events in engine control modules |
| TJ max | +185 °C - extended junction temperature rating enabling placement near high-power components without derating penalties |
| Polarity | Unidirectional - blocks reverse voltage only, ideal for DC-biased signal lines like CAN or LIN bus protection |
| ESD Rating | ±30 kV (IEC 61000-4-2 contact) - robust electrostatic discharge immunity for assembly and field operation in vehicle cabins |
Pinout & Package
Package: DFN3820A - leadless, 2-terminal surface-mount package measuring 3.95 mm × 2.18 mm × 0.88 mm (L × W × H), with side-wettable flanks for automated optical inspection and solder-joint reliability verification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink) | Current return path / thermal interface | Exposed metal pad functions as primary thermal conduction path to PCB copper; must be connected to large ground plane for RθJM = 5 °C/W performance |
| Cathode (K) | Transient current sink | Connected to protected line (e.g., sensor supply); conducts surge current to anode when V > VBR, clamping voltage to VC |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables 100% automated optical inspection (AOI) of solder fillets without X-ray, reducing post-reflow defect escape in automotive production |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock - required for Tier-1 ECU BOM inclusion |
| Junction passivation | Stabilizes VBR drift across lifetime and temperature; αT = 0.092 %/°C ensures predictable clamping behavior from -65 °C to +185 °C |
| MSL Level 1 | Supports standard 260 °C peak reflow profile without baking, simplifying SMT line integration and inventory management |
| Halogen-free & RoHS | Complies with automotive material compliance standards (e.g., GMW3172, Ford WSS-M99P9999-A1) and EU environmental directives |
Applications
| Automotive Engine Control Unit (ECU) | Automotive Cabin Sensor Module |
|---|---|
Use Scenario: Protecting 5 V or 12 V sensor supply rails (e.g., MAP, O2, crankshaft position sensors) from load-dump and alternator ripple transients. IC Role / Device Role: Primary transient voltage suppressor placed at connector entry point before LDO regulator input. Use Value: Clamps 600 W surges to ≤64.8 V, preventing latch-up or damage to downstream ASICs rated for 45 V absolute maximum. | Use Scenario: Safeguarding LIN bus communication lines in door modules and seat controllers against ESD and cable discharge events. IC Role / Device Role: Unidirectional TVS on LIN data line (dominant/recessive signaling), referenced to local ground. Use Value: Delivers ±30 kV IEC 61000-4-2 ESD protection while maintaining <1.0 μA leakage at 12 V, preserving bus timing margins. |
| ADAS Camera Power Input | Electric Power Steering (EPS) Motor Driver Interface |
Use Scenario: Shielding 3.3 V or 5 V image sensor power inputs from ignition noise and battery transients in front/rear camera assemblies. IC Role / Device Role: Secondary-level TVS after main fuse, located adjacent to image sensor IC package. Use Value: Low-profile 0.88 mm height fits under compact camera lens housings; TJ = 185 °C rating sustains reliability in sealed enclosures. | Use Scenario: Protecting gate driver logic inputs from MOSFET switching noise and inductive kickback in EPS motor control boards. IC Role / Device Role: Point-of-load TVS on isolated PWM signal traces between MCU and gate driver IC. Use Value: Fast response time (<1 ns) and 64.8 V clamping prevent false triggering of high-side drivers during 40 V+ transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47AHE3/5BT | DO-214AC (SMA) package; higher RθJA (150 °C/W); VBR = 47.1–49.4 V; same 600 W PPPM | Through-hole or larger SMT footprint; less suitable for AOI or ultra-thin modules | Select when legacy board layout or manual rework capability is prioritized over space and thermal performance |
| SMCJ47A | DO-214AB (SMC) package; 1500 W PPPM; VBR = 47.1–49.4 V; RθJA ≈ 100 °C/W | Higher power handling but 7.11 mm × 6.22 mm footprint; not AEC-Q101 qualified | Choose for non-automotive industrial applications requiring greater surge margin and relaxed thermal constraints |
Compared with SMAJ47AHE3/5BT and SMCJ47A, the T6N47AHM3/I offers superior board-area efficiency (3.95 mm × 2.18 mm), certified automotive qualification, and lower thermal resistance to PCB mount - critical for dense, thermally constrained ADAS and powertrain modules.
Availability
T6N47AHM3/I is available at Aetrix Electronics and suitable for automotive engine control units, cabin sensor modules, ADAS camera power inputs, and electric power steering interfaces requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for T6N47AHM3/I includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, automotive-grade components meeting global safety and environmental standards.
The T6N47AHM3/I belongs to the PAR® Transient Voltage Suppressor family, engineered specifically for space-constrained, high-temperature automotive electronics where consistent clamping performance and AEC-Q101 validation are mandatory.
FAQ
What is the breakdown voltage tolerance for T6N47AHM3/I?
The T6N47AHM3/I has a breakdown voltage (VBR) tolerance of ±5 %, specified as 44.7 V (min) to 49.4 V (max) at 1 mA test current. This tight tolerance ensures predictable turn-on behavior in automotive 36 V system protection circuits and aligns with AEC-Q101 requirements for parameter consistency across temperature and lifetime.
Is T6N47AHM3/I compatible with lead-free reflow processes?
Yes, T6N47AHM3/I is fully compatible with lead-free reflow processes. It meets MSL Level 1 per J-STD-020 and supports a maximum peak reflow temperature of 260 °C. The matte tin-plated terminals comply with J-STD-002 and JESD 22-B102, and the HM3 suffix confirms JESD 201 Class 2 whisker resistance.
What does the "HM3" suffix mean in T6N47AHM3/I?
The "HM3" suffix in T6N47AHM3/I indicates AEC-Q101 qualification (H), halogen-free composition, RoHS compliance, and Pb-free termination (M3). It also certifies compliance with JESD 201 Class 2 whisker testing - a mandatory requirement for automotive under-hood and safety-critical applications.
Can T6N47AHM3/I be used in bidirectional configurations?
No, T6N47AHM3/I is strictly unidirectional. Its internal structure and polarity marking (cathode band) support only single-quadrant transient suppression. For bidirectional protection, Vishay offers complementary parts such as the T6N47AHM3/IT (transient-rated dual-diode configuration) or separate back-to-back unidirectional devices.
What is the thermal resistance from junction to mount (RθJM) for T6N47AHM3/I?
The thermal resistance from junction to mount (RθJM) for T6N47AHM3/I is 5 °C/W (typical), measured per JEDEC® 51-14 using the transient dual interface method. This low value is achieved via the exposed anode pad and requires connection to ≥100 mm² of 2 oz. copper on the PCB for optimal thermal performance.
T6N47AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- 2-VDFN
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.8V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN3820A
T6N47AHM3/I FAQ
1.How can I place an order for T6N47AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for T6N47AHM3/I on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for T6N47AHM3/I reliable?
The price and inventory of T6N47AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T6N47AHM3/I is usually 5 days.
3.What payment methods are accepted for T6N47AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T6N47AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T6N47AHM3/I?
T6N47AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T6N47AHM3/I order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for T6N47AHM3/I?
For technical support, including T6N47AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T6N47AHM3/I requirements.
6.How does Aetrix verify that T6N47AHM3/I is sourced from the original manufacturer or authorized distributors?
All T6N47AHM3/I products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that T6N47AHM3/I meets industry standards.
7.What is the process for return or replacement of T6N47AHM3/I?
All T6N47AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with T6N47AHM3/I, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The T6N47AHM3/I part is unused and in its original packaging.
Return procedure for T6N47AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T6N47AHM3/I Tags
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